Simple Definition of sky

from our Learner's Dictionary

sky

noun

plural skies
: the space over the Earth where the sun, moon, stars, and clouds appear
a starry sky
the night/desert sky
There wasn't a cloud in the sky.
Dark clouds moved quickly across the sky.
Hailstones suddenly fell out of the sky.
The sun/moon was high in the sky.
The forecast is for sunny/blue/gray/overcast skies tomorrow.
partly cloudy skies
a patch of blue sky

Cite this Entry

“Sky.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/sky. Accessed 7 Apr. 2026.

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